Pulley-pattern-molding press



(No Model.) I

J. 0. WHEELER 8:; M. OOKELY.

PULLEY PATTERN MWOLDING PRESS. No. 342,239. E Patented May 18, 1886.

WITNESSES IJV'VENTORS Jo/m C". Wi eeler. I i 1 c9 mic/lad @466 fl/jfly MUM Phn n-Lilhngmpllcr, Washington D c UNITED STATES PATENT 0F 9E JOHN CYRUS IVHEELER AND MICHAEL OOKELY, OF FLUSHING, NE\V YORK.

Pu LL EY-PATTE RN-iM OLDING PRESS.

SPECIFICATION forming part of Letters Patent No. 342,239, dated May 18,1886.

' Application filed February 20, 1886. Serial No. 192,633. (No model.)

ley-PattcrirMolding Presses; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a representation of a front elevation, partly in section. Fig. 2 is a bottom plan of plate L, and Fig. 3 is a perspective view of one of the prongs.

Our invention has relation to machines for molding pulleys, &c.; and it consists in'the construction and novel combination of parts, as hereinafter set forth, and pointd out in the claims.

Referring by letter to the accompanying drawings, X designates the bed-plate, which supports the other portions of the machine.

A designates the base of the machine,which is provided with two vertical slots, A A, in opposite sides, through which project the press-arms O C, said press-arms G 0 being connected with the press-plate J by connectingarms 2 and 3.

B is a vertical spindle or shaft, firmly secured to the bed, on which spindle slide the press-arms G C.

D D are arms which are secured to the rimpattern 4 5 by screws 1 and 2.

E designates a plate, which rests upon the top of the vertical shaft or spindle B, to support the hub and half-arm pattern K.

H designates a rigid frame, and H anti-friction wheels, under which works the inner end of the lever F, the outer end of said lever F terminating in a geared segment, F, which connects with a small pinion, F behind the pulley G.

M M designate the flask, on the top of which rests the ring N N, for holding sufficient sand to press into the flask.

L is a plate with prongs 6 7 8 9 10 11 12 13 attached, which plate is of the same diameter as the flask III M, which plate is designed to press and support the sand in the flask.

I designates a lever, attached to the arms D D, which draws down the rim-pattern after the mold is pressed.

The mode of operating the device is as fol-' lows: After the rim-pattern 4 5 has been-projected up through the base by means of the lever I, the ilask M M is'put in place and filled with sand to the top of the ring N N, which rests on the flask. The pronged plate L is then lowered (prongs down) into the sand. The press-plateJ, which is hinged through its arms 2 3 to the press-arms O G, is then brought directly over the plate L. Power is then applied to pulley G,'and is transmitted through the pinion F to the lever F,which is drawn down by the pinion and segment until the pronged plate L rests on the flask M M, where it is fastened after forcing the sand con tained in the ring N N into it. The rim-pat tern is then drawn down by the lever I, the press released and swung to one side, the flask lifted away from the top of the base, (where the arm -pattern is stationary) and a halfmold is finished. After another half mold has been made in the same way, both are placed together, and are then ready to receive the metal.

In a finished machine it is intended that the movements of the parts he automatic, and any suitable mechanism may be employed to impart such motion to the parts.

The plate works independently of the flask, and is of any required shapethat is, either square, round, &c.and adapted to any size casting. The prongs may be connected in the form of comb-sections, if desired-that is, connected to a back or rib common to several or all of them. Near the center of the plate are several slots, S, which are to permit some of the sand to escape while pressing the pulley, in order to prevent the mold from being too hard directly over the hub, and also to allow the gases to escape and the metal to enter the mold. The whole plate is simply a device for pressing and also supporting the sand in flasks of such dimensions as require something more to support the sand than its own consistency.

The ring N N is necessary for holding sufficient sand to make the mold of the requisite density after being pressed.

The ring N should be a lap or split ring, so that the same may yield to the action of the plate L, and allow the surplus sand to pass over the beveled edge a of the flask M. It will be seen that by having the mouth of the flask beveled outwardly, edges are presented which will afford no means for the sand remaining thereon, but when the plate .L is brought down will force the sand which cannot be pressed into the flask against the ring N, and allow the said plate to come down upon the month of the flask.

It will be noticed that the inner end of the lever F rests on anti-friction rollers under the frame H, and shortens the distance between the frame H and the point at which it is conneeted with the press-arms O O as the latter slide down the spindle or vertical shaft during the operation, thereby greatly increasing the power of leverage.

Having described this invention, what we claim, and desire to secure by Letters Patent, 1s

1. The combination, with the bed-plate X, the slotted base, the vertical post B, with plate E, and half-pattern K, at its upper end,

the ring N, flask M M, and pattern, of the pronged plate L, the press-plate J, the arms 2 3, connecting said plate to the press-arms O O, and the segment-lever F, and gearing F, substantially as specified.

2. The combination, with the bed-plate X, the bars 2, the arms 0, the slotted base, the vertical post B,with plate E and half-pattern K at its upper end, the ring N, and flask M, of the pronged plate L, having the central slots, the

hinged press-plate, and the compression-levers,

as described, for compressing the sand in the flask, substantially as specified.

3. In a molding-machine, the combination, with a flask having an outwardly-beveled mouth, of a yielding ring arranged to engage 

